Robot cleaner



FIG. 1 is a front perspective view of a robot cleaner showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is another left-side view, in which the robot cleaner is shown in an alternate position to illustrate an example environment; and,

FIG. 8 is a front perspective view of FIG. 8.

The broken lines are for environmental purposes only and form no part of the claimed design. 

CLAIM We claim the ornamental design for a robot cleaner, as shown and described. 